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Tumor embolization

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https://www.readbyqxmd.com/read/28808803/a-prototype-educational-model-for-hepatobiliary-interventions-unveiling-the-role-of-graphic-designers-in-medical-3d-printing
#1
Ramin Javan, Merissa N Zeman
In the context of medical three-dimensional (3D) printing, in addition to 3D reconstruction from cross-sectional imaging, graphic design plays a role in developing and/or enhancing 3D-printed models. A custom prototype modular 3D model of the liver was graphically designed depicting segmental anatomy of the parenchyma containing color-coded hepatic vasculature and biliary tree. Subsequently, 3D printing was performed using transparent resin for the surface of the liver and polyamide material to develop hollow internal structures that allow for passage of catheters and wires...
August 14, 2017: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
https://www.readbyqxmd.com/read/28806623/retroperitoneal-paraganglioma-is-pre-operative-embolization-useful
#2
Natalia Apentchenko Eriutina, Camilo J Castellón Pavón, Carlos García Vásquez, Irene Gonzalo Montesinos, Santos Jiménez de Los Galanes, Pedro A Pacheco Martínez, Juan Gómez Patiño
INTRODUCTION: Paragangliomas (PG) are rare tumors derived from chromaffin cells that are located outside the adrenal gland and are capable of producing catecholamines. The treatment is based on a surgical resection, and there is controversy regarding the usefulness of previously carrying out an embolization and what is the most adequate surgical approach. CLINICAL CASE: We will present a 17-year-old woman with a retroperitoneal tumour in contact with the aorta and the inferior vena cava, treated with embolization prior to the surgical resection via laparotomy...
August 5, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28801324/mechanical-thrombectomy-for-repeated-cerebral-tumor-embolism-from-a-thoracic-sarcomatoid-carcinoma
#3
Raoul Pop, Dan Mihoc, Monica Manisor, Johann Sebastian Richter, Veronique Lindner, Ralf Janssen-Langenstein, Mihaela Simu, Valerie Wolff, Remy Beaujeux
Cerebral embolism originating from intracardiac tumors represents a rare cause of stroke and has been documented in both adult and pediatric populations. We present a patient recently diagnosed with a right pulmonary hilum tumor, invading the pulmonary veins and the left atrium. Two consecutive episodes of large cerebral vessel occlusion in separate vascular territories occurred in the same day and were treated by mechanical thrombectomy. Embolic material retrieved on both occasions contained tumor fragments with peripheral endothelialization...
August 11, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28791278/venous-thromboembolism-in-pediatric-vascular-anomalies
#4
REVIEW
Taizo A Nakano, Chadi Zeinati
The presence of a vascular anomaly suggests that capillaries, veins, arteries, and/or lymphatic vessels have demonstrated abnormal development and growth. Often dilated and misshaped, these vessels augment normal flow of blood and lymphatic fluids that increases the overall risk to develop intralesional thrombosis. Abnormal endothelial and lymphoendothelial cells activate hemostasis and hyperfibrinolytic pathways through poorly understood mechanisms, which contribute to the development of localized intravascular coagulopathy...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28790213/-surgical-treatment-of-cervical-carotid-artery-aneurysm
#5
Ryo Hamasaki, Toshiharu Yanagisawa, Yusuke Takahashi, Hiroaki Shimizu
Cervical carotid aneurysms are rare, and surgical treatment should be planned for each patient. The authors report 9 cases of cervical carotid aneurysm in 9 patients(mean age, 53.7 years;5 men)who were treated surgically between 2005 and 2014. The aneurysm was located in the internal carotid artery in 6 patients, the common carotid artery in 2 patients, and the carotid bifurcation in 1 patient. Four aneurysms were recurrences after a previous endovascular intervention(parent artery coil embolization, covered stent placement, or stent with coil embolization)...
August 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28782781/mos2-nanosheets-encapsulated-in-sodium-alginate-microcapsules-as-microwave-embolization-agents-for-large-orthotopic-transplantation-tumor-therapy
#6
Changhui Fu, Fan He, Longfei Tan, Xiangling Ren, Wei Zhang, Tianlong Liu, Jingzhuo Wang, Jun Ren, Xudong Chen, Xianwei Meng
In recent years, it is prevalent to treat various kinds of the tumors through microwave ablation method. However, it is still very difficult to ablate large tumors by the traditional microwave ablation therapy. In this work, an effective microwave embolization agent designed by encapsulating molybdenum sulfide nanosheets in the sodium alginate microcapsules, denoted as MSMCs, was prepared for the effective therapy of large tumor. The toxicity evaluation showed that MSMC had a good biocompatibility in vitro...
August 7, 2017: Nanoscale
https://www.readbyqxmd.com/read/28781880/acute-aortic-occlusion-due-to-tumor-embolism-in-a-patient-with-lung-malignancy
#7
Stella Lioudaki, Nikolaos Kontopodis, Stefanos Palioudakis, Anastasios V Koutsopoulos, Ioannis Drositis, Christos V Ioannou
OBJECTIVES: Acute lower limb ischemia caused by tumor embolization is rare, despite the fact that cancer is a common cause of hypercoagulability predisposing to venous thrombosis. Arterial embolization is mostly associated with intracardiac tumors while lung malignancies are the second most common cause of tumor embolism. METHODS: In this report, we present a male patient who developed acute bilateral lower limb ischemia in the immediate postoperative period after a thoracotomy for attempted left upper lobe resection for lung cancer...
2017: SAGE open medical case reports
https://www.readbyqxmd.com/read/28774330/the-paradigm-of-tumor-shrinkage-and-rapid-liver-remnant-hypertrophy-for-conversion-of-initially-unresectable-colorectal-liver-metastasis-a-case-report-and-literature-review
#8
Nan Xiao, Kailin Yu, Shaojun Yu, Jianjun Wu, Jian Wang, Siyang Shan, Shuchun Zheng, Liuhong Wang, Jianwei Wang, Shuyou Peng
BACKGROUND: For colorectal liver metastasis (CRLM) patients, hepatic resection is currently the sole cure offering the chance of long-term survival. Tumor shrinkage and planned liver remnant hypertrophy are the two key strategies for conversion of initially unresectable CRLM. First conducted in 2012, associated liver partition and portal vein ligation for staged hepatectomy (ALPPS) allows rapid liver growth. As a means to induce hypertrophy, portal vein embolization (PVE) has been widely applied before extending hepatectomy...
August 3, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28770316/hepatic-arterial-embolization-using-cone-beam-ct-with-tumor-feeding-vessel-detection-software-impact-on-hepatocellular-carcinoma-response
#9
F H Cornelis, A Borgheresi, E N Petre, E Santos, S B Solomon, K Brown
PURPOSE: Dedicated tumor feeding vessel detection software (TFVDS) using cone beam CT has shown a higher sensitivity to detect tumor feeding vessels during hepatic arterial embolization (HAE) of hepatocellular carcinoma (HCC) compared to 2D imaging. Our primary hypothesis was that HCC tumors treated with HAE guided by a TFVDS would show more complete response (CR) than when treated with 2D imaging alone. Secondary analysis of the impact on X-ray exposure was performed. MATERIALS AND METHODS: Nineteen males and 8 females (median age: 69 year, 46-85) with 44 tumors (median size: 38 mm, 6-100) treated with selective HAE between January 2013 and December 2014 were included...
August 2, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28764652/tissue-sublimation-follow-transarterial-embolization-of-a-follicular-nodular-hyperplasia-of-the-liver-report-of-a-case
#10
Peter C Ambe, Stefan Jansen, Hubert Zirngibl
BACKGROUND: Follicular nodular hyperplasia (FNH) is a common benign liver tumor for which conservative management is indicated. Surgical or interventional management is indicated in symptomatic cases. Transarterial embolization (TAE) has been extensively used to manage unresectable liver tumors. Sublimation describes a change of physical state from solid to gas. Hepatic tissue sublimation following TAE has so far not been reported in medical literature. CASE PRESENTATION: A 30 year - old male patient presenting with pain to the upper abdomen due to a large FNH was managed with TAE...
August 1, 2017: BMC Gastroenterology
https://www.readbyqxmd.com/read/28762298/cardiac-myxoma-clinical-characteristics-surgical-intervention-intra-operative-challenges-and-outcome
#11
Mahmoud Abu Abeeleh, Suhayl Saleh, Emad Alhaddad, Moaath Alsmady, Musa Alshehabat, Zuhair Bani Ismail, Islam Massad, Amjad Bani Hani, Sami Abu Halaweh
OBJECTIVE: The objectives of this retrospective study were to characterize the clinical presentation, diagnostic findings, surgical approaches, intra-operative challenges and complications following the surgical treatment of cardiac myxoma in two of the largest referral hospitals in Jordan. METHODS: Medical records of all patients presented to the cardiology department during the period between 1984 and 2016 were reviewed. Criteria for inclusion in the study were: (1) patients who were presented for cardiac evaluation due to symptoms suggestive of a primary cardiac problem, (2) completed medical records, including results of echocardiography suggestive of intra-cardiac occupying mass, (3) the surgical operation was undertaken and intra-operative data was available, (4) a histological diagnosis of myxoma was available and (5) the discharge status and follow-up data were available for at least 2 years after initial surgery...
July 1, 2017: Perfusion
https://www.readbyqxmd.com/read/28758563/papillary-fibroelastoma-found-with-transesophageal-echocardiography-after-a-normal-transthoracic-echocardiography
#12
Andrew G Cook, Omar Viswanath, Jayanand D'Mello
We present the case of a patient with transient ischemic attacks who was being investigated for multiple embolic strokes. Initial workup, including brain computed tomography, computed tomography angiography, and transthoracic echocardiography (TTE) were negative for a source until transesophageal echocardiography (TEE) found a mass in the left atrium. The TEE differentiated the mass as a rare cardiac papillary fibroelastoma on the left atrial free wall confirmed by postsurgical pathology. This case highlights the importance of TEE as a diagnostic tool for its ability to more accurately differentiate and characterize the tumor compared with TTE...
September 2017: Seminars in Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28758175/next-generation-sequencing-of-progressive-colorectal-liver-metastases-after-portal-vein-embolization
#13
Eve Simoneau, Jarred Chicoine, Sarita Negi, Ayat Salman, Anthoula Lazaris, Mazen Hassanain, Nicole Beauchemin, Stephanie Petrillo, David Valenti, Ramila Amre, Peter Metrakos
Portal vein embolization (PVE) can be required to stimulate liver regeneration before hepatectomy for colorectal liver metastasis (CRCLM), however PVE may also trigger CRCLM progression in patients initially exhibiting chemotherapy response. Using RNA-seq, we aimed to determine the molecular networks involved in metastatic progression in this context. A prospective study including all CRCLM patients undergoing PVE prior to hepatectomy was conducted. Paired biopsies of metastatic lesions were obtained prior to and after PVE and total RNA was isolated and used to prepare Illumina rRNA-depleted TruSeq stranded cDNA libraries for HiSeq 100 bp paired-end sequencing...
July 31, 2017: Clinical & Experimental Metastasis
https://www.readbyqxmd.com/read/28755102/non-surgical-ablative-therapies-for-inoperable-benign-insulinoma
#14
REVIEW
C Mele, A Brunani, B Damascelli, V Tichà, L Castello, G Aimaretti, M Scacchi, P Marzullo
PURPOSE: Benign insulinoma is the most common functioning neuroendocrine tumor of the pancreas. The gold-standard therapeutic approach for insulinoma is surgery, which allows for tumor removal, histology and immunochemical analyses. If surgery is not feasible, minimally invasive ablative procedures performed by interventional radiology can lead to partial or complete remission of hormone hypersecretion and tumor control in insulinoma patients. METHODS: We performed a review of existing literature on non-chemotherapeutic/radioactive ablative techniques employed for the treatment of benign, otherwise inoperable, pancreatic insulinoma...
July 28, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28752725/optional-caval-filter-in-kidney-cancer-patients-with-tumor-thrombus-level-i-and-ii
#15
Marco Grasso, Salvatore Blanco, Vittorio Segramora, Emanuele C Grasso, Davide Leni, Grazia M Conti
BACKGROUND: Kidney diseases which require a radical surgical approach can come up complicated by the presence of a thrombus of the renal vein or the inferior vena cava (IVC). The overwhelming majority of these cases concern the presence of a kidney tumor, especially renal cell carcinoma (RCC). Kidney tumor presenting with thrombus extension into the IVC represents a difficult operative challenge, especially for the risk of thrombus dislocation due to the manipulation of the IVC during tumor isolation, which may result in pulmonary embolism (PE)...
July 27, 2017: Minerva Urologica e Nefrologica, the Italian Journal of Urology and Nephrology
https://www.readbyqxmd.com/read/28743167/preoperative-bevacizumab-and-volumetric-recovery-after-resection-of-colorectal-liver-metastases
#16
Georgios Antonios Margonis, Stefan Buettner, Nikolaos Andreatos, Kazunari Sasaki, Manijeh Zargham Pour, Ammar Deshwar, Jane Wang, Mounes Aliyari Ghasebeh, Christos Damaskos, Neda Rezaee, Timothy M Pawlik, Christopher L Wolfgang, Ihab R Kamel, Matthew J Weiss
BACKGROUND AND OBJECTIVES: While preoperative treatment is frequently administered to CRLM patients, the impact of chemotherapy, with or without bevacizumab, on liver regeneration remains controversial. METHODS: The early and late regeneration indexes were defined as the relative increase in liver volume (RLV) within 2 and 9 months from surgery. Regeneration rates of the preoperative treatment groups were compared. RESULTS: Preoperative chemotherapy details and volumetric data were available for 185 patients; 78 (42...
July 25, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28742731/endoscopic-ultrasound-guided-portal-venous-access-diagnostic-and-therapeutic-implications
#17
Rajat Garg, Tarun Rustagi
Endoscopic ultrasound (EUS) has evolved from a purely diagnostic to an interventional modality offering minimally invasive alternatives to surgical and radiologic interventions. This has led to a rapidly growing interest in EUS-guided vascular interventions. EUS-guided portal venous access is an emerging technique which opens a new arena for interventional vascular EUS. Portal vein can be accessed under EUS guidance with high precision and low risk of complications thus expanding its application for both benign and malignant conditions...
July 24, 2017: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/28740633/papillary-fibroelastoma-arising-from-the-coumadin-ridge
#18
Mahim Malik, Konstantin Shilo, Ahmet Kilic
Cardiac papillary fibroelastomas (CPF) are rare cardiac tumors, mostly found on the valvular surfaces in the heart. These tumors are frond like in nature and are benign, intracardiac masses, rarely causing any hemodynamic disturbances. However, excision of these masses is indicated due to their propensity to embolize. We present a case report of the tumor found on the coumadin ridge, causing transient ischemic attacks in a patient. We performed complete excision of the tumor via median sternotomy on cardiopulmonary bypass support with cardiac arrest...
2017: Journal of Cardiovascular and Thoracic Research
https://www.readbyqxmd.com/read/28740566/salvage-embolization-and-histologic-analysis-of-gastric-cancer-with-hemorrhagic-shock-using-spherical-embolic-material
#19
Norifumi Kennoki, Toru Saguchi, Jun Otaka, Yosuke Makuuchi, Takafumi Watanabe, So Katayanagi, Hiromi Serizawa, Kiyoshi Koizumi, Koichi Tokuuye
BACKGROUND: In a recent study, it was reported that transcatheter arterial embolization with spherical embolic material for life-threatening hemorrhages in various cancer patients was safe and effective. Calibrated microspheres are able to access distal regions of the target arteries, which results in the disappearance of tumor staining. However, there are few reports on the pathological behavior of EmboSpheres in gastric cancer specimens. In this case, we succeeded in salvage embolization for advanced gastric cancer with hemorrhagic shock using spherical embolic material...
2017: Polish Journal of Radiology
https://www.readbyqxmd.com/read/28740346/management-and-outcome-of-hepatocellular-adenoma-with-massive-bleeding-at-presentation
#20
Anne J Klompenhouwer, Robert A de Man, Maarten Gj Thomeer, Jan Nm Ijzermans
AIM: To evaluate outcome of acute management and risk of rebleeding in patients with massive hemorrhage due to hepatocellular adenoma (HCA). METHODS: This retrospective cohort study included all consecutive patients who presented to our hospital with massive hemorrhage (grade II or III) due to ruptured HCA and were admitted for observation and/or intervention between 1999-2016. The diagnosis of HCA was based on radiological findings from contrast-enhanced magnetic resonance imaging (MRI) or pathological findings from biopsy or resection of the HCA...
July 7, 2017: World Journal of Gastroenterology: WJG
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